CDT403 Research Methodology in Natural Sciences and Engineering Theory of Science SCIENCE, RESEARCH, TECHNOLOGY, SOCIETY, COMPLEXITY AND INTERDISCIPLINARITY Gordana Dodig-Crnkovic School of Innovation, Design and Engineering Mälardalen University 1 THEORY OF SCIENCE Lecture 1 INFORMATION, COMPUTATION, KNOWLEDGE AND SCIENCE Lecture 2 SCIENCE AND CRITICAL THINKING. PSEUDOSCIENCE AND WISHFUL THINKING - DEMARCATION Lecture 3 SCIENCE, RESEARCH, TECHNOLOGY, SOCIETY, COMPLEXITY AND INTERDISCIPLINARITY Lecture 4 VALUES AND ETHICS - PROFESSIONAL & RESEARCH ETHICS 2 SCIENCE, RESEARCH, TECHNOLOGY Aristotle's Distinctions between Science and Technology Science Technology unchangeable changeable inside outside End knowing the general knowing the concrete Activity theoria: end in itself poiesis: end external Method abstraction modeling complexity Process conceptualizing optimizing discovery invention law-like statements rule-like statements long-term short-term Object Principle of motion Innovation form Type of result Time perspective 3 SCIENCE IN MICRO AND MACROCOSMOS Levels of abstraction/Levels of organization Sciences, Objects and Methods http://www.youtube.com/watch?v=akbilxS1dGc&feature=related zoom in – zoom out SCIENCE Logic & Mathematics Natural Sciences Social Sciences Humanities OBJECTS DOMINATING METHOD Simple Reductionism (analysis) Abstract objects: propositions, numbers, ... Deduction Natural objects: physical bodies, fields and interactions, living organisms ... Social objects: human individuals, groups, society, .. Cultural objects: human ideas, actions and relationships, language, artefacts… Complex Hypothetico-deductive method Hypothetico-deductive method + Hermeneutics Hermeneutics Holism (synthesis) 4 SCIENCE, RESEARCH, DEVELOPMENT AND TECHNOLOGY Research Development Science Technology 5 CLASSICAL SCIENCES LANGUAGE BASED SCHEME Culture (Religion, Art, …) Logic & Mathematics Natural Sciences (Physics, Chemistry, Biology, …) Social Sciences (Economics, Sociology, Anthropology, …) Computing The Humanities (Philosophy, History, Linguistics …) 6 SCIENCES BASED ON SEVERAL RESEARCH FIELDS – CROSS DISCIPLINARY RESEARCH Our basic scheme represents classical sciences. Many modern sciences however are stretching over several research fields of our scheme. Computer science e.g. includes the field of AI that has its roots in mathematical logic and mathematics but uses physics, chemistry and biology and even has parts where medicine and psychology are very important. Software Engineering include both formal methods and project management. HCI, human-computer interaction combines knowledge from “hard” and “soft” sciences. Computer games border with arts. 7 TECHNOLOGY 8 WRITING THE ARCH RAILWAYS ELECTRICITY COMPUTER TELEVISION AUTOMOBILE CAMERA/TELESCOPE SEWING MACHINE INTERNET ANTIBIOTICS ANESTHETICS DNA SEQUENCING 9 PROCESS OF VIRTUALIZATION IN TECHNOLOGY http://www.youtube.com/watch?v=zh_8_iV4Plo&feature=related Top 10 greatest inventions of mankind http://www.youtube.com/watch?v=m2TkrC40VUc The History of Information Technology http://www.youtube.com/watch?v=Dg598hH_348 The History of Technological Innovations Video 10 TECHNOLOGY EXPANDS OUR WAYS OF THINKING ABOUT THINGS, EXPANDS OUR WAYS OF DOING THINGS. Herbert A. Simon 11 SCIENCE AND SOCIETY THE “TRIPLE HELIX” MODEL SOCIETY Knowledge society based on ICT CULTURE SCIENCES & HUMANITIES The triple helix model: – ACADEMIA – PRODUCTION (ECONOMY) – GOVERMENT 12 SOCIETAL ASPECTS OF SCIENCE Science has several important facets: - insights in foundational issues (understanding of the world) - applications (practical use) - societal aspects (impact on the society) Sciences are promoting rational and analytical discussions of the central issues of concern to scientists and other scholars, and to the public at large, both in terms of knowledge production and in practical applications. 13 SOCIETAL ASPECTS OF SCIENCE RESEARCH COMMUNITY AS INFORMATIONAL NETWORK “ .. if we consider Galileo alone in his cell muttering, ‘and yet it moves,’ with the recent meeting at Kyoto – where heads of states, lobbyists, and scientists were assembled together in the same place to discuss the Earth – we measure the difference ..” Bruno Latour 14 SOCIETAL ASPECTS OF SCIENCE Further reading on current topics: http://www.sciencemag.org Essays on Science and Society Science magazine 15 POSTMODERNISM AND THE NATURE OF SCIENCE Modernism may be seen as the height of the Enlightenment's* quest for an rational knowledge, aesthetics, and ethics. Postmodernism is a cultural and philosophical movement which formed in reaction to modernism. Postmodernism is concerned with how the authority of rational ideals, sometimes called meta-narratives**, are undermined through fragmentation and deconstruction. *The Age of Enlightenment (or simply the Enlightenment or Age of Reason) was a cultural movement of intellectuals in 18th century Europe, that sought to mobilize the power of reason in order to reform society and advance knowledge. It promoted intellectual interchange and opposed intolerance and abuses in Church and state. **Meta-narratives - "grand narratives“, form of ‘universal truth' 16 POSTMODERNISM Postmodernism attacks the primacy of ideas of universals and encourages fractured, fluid and multiple perspectives and is marked by an increasing importance in the ideas from the Sociology of knowledge. 17 POSTMODERNISM All knowledge, scientific knowledge included, is found to be socially constructed. Being “socially constructed” implies not absolute, but relative to the humans and humanity. No (absolute) objectivity exists for humans (or any other intelligent agents). From that correct observation, postmodernist draw a very farreaching conclusion: “Science is merely one story among others.” The world we know is one that is constructed by human discourses. (correct) From the point of view of knowledge (epistemologically ), a scientific text is understood as being on a par with a literary text. (false) 18 TWO CULTURES 2009 marked the 50th anniversary of C. P. Snow’s famous “Two Cultures” essay, in which he lamented the great cultural divide that separates two great areas of human intellectual activity, “science” and “the arts.” Snow argued that practitioners in both areas should build bridges, to further the progress of human knowledge and to benefit society. http://www.scientificamerican.com/article.cfm?id=an-update-on-cp-snows-two-cultures Image: Matt Collins http://www.nytimes.com/2009/03/22/books/review/Dizikes-t.html?pagewanted=all Our Two Cultures http://en.wikipedia.org/wiki/Consilience_(book) Consilience: The Unity of Knowledge is a 1998 book by biologist E. O. Wilson. 19 SCIENCE WARS (1) In early 1996 the physicist Alan Sokal who was provoked by postmodernist negative attitude to science caused a controversy by publishing two provocative journal articles. The first article, Transgressing the Boundaries: Toward a Transformative Hermeneutics of Quantum Gravity appeared in the journal Social Text. It pretended to be a serious article on the implications of developments in the field of cultural studies for developments in modern physics, and vice-versa. 20 SCIENCE WARS (2) The second article, A Physicist Experiments with Cultural Studies, appeared in the journal Lingua Franca just as issue of Social Text containing the first article was published. It revealed that the first article was a hoax. 21 SCIENCE WARS (3) But why did Sokal do it? He says: “I'm a stodgy old scientist who believes, naively, that there exists an external world, that there exist objective truths about that world, and that my job is to discover some of them. “ Allan Sokal 22 SCIENCE WARS (4) “To test the prevailing intellectual standards, I decided to try a modest (though admittedly uncontrolled) experiment: Would a leading North American journal of cultural studies (..) publish an article liberally salted with nonsense if (a) it sounded good and (b) it flattered the editors' ideological preconceptions? “ Allan Sokal 23 SCIENCE WARS (5) The post modern ideas were known as Social Constructivism and Deconstructionism. The branch of sociology, Sociology of Scientific Knowledge (SSK) and Science and Technology Studies (STS) were influences by postmodern movements and had the objective of showing that the results of scientific findings did not represent objective reality, but were basically instruments of the ideology of dominant groups within society. 24 POSTMODERNIST ANTI-SCIENTISM Post-modernism was a radical critique against science, contemporary philosophy and current understanding of rationality. The view of science as a search for truths (or approximate truths) about the world was rejected. According to postmodernism, the natural world has a subordinated role in the construction of scientific knowledge. Science was just another social practice, producing ``narrations'' and ``myths'' with basically no more validity than any other myths. 25 IS THERE ANYTHING NEW UNDER THE SUN? ANY PROGRESS? 26 AN EXAMPLE OF PROGRESS - TRANSPORTATION 27 AN EXAMPLE OF PROGRESS - TRANSPORTS “Beam me up Scotty” next? 28 SCIENCE WARS (6) Sources for further reading: http://www.physics.nyu.edu/faculty/sokal http://www.math.gatech.edu/~harrell/cult.html http://skepdic.com/sokal.html 29 WHAT HAVE WE LEARNED FROM POSTMODERNISM? Humans always produce theories that are context-dependent and based on our (human) perspective. It is good to be aware of that context in which science operates. Society is an important factor when it comes to politics, including policies in science which provide resources for science. In a given context, by scientific methods we can reach our best knowledge, which is constantly improving. If not seen as absolute, but our best common knowledge about the physical world, science has a very distinct position among different possible descriptions of the world. 30 END OF SCIENCE WARS AND NEW EMERGING ALLIANCES At present, a lot of activity in cross-disciplinary, multi-disciplinary and inter-disciplinary collaborations. Examples: Computing and Philosophy http://ia-cap.org and Interdisciplines (Topics: Adaptation and Representation, Art and Cognition, Causality, Enaction (Action and perception intertwined), Issues in Coevolution of Language and Theory of Mind.) http://www.interdisciplines.org 31 RESEARCH, COMMUNICATION AND ICT New development of collaborations between different research disciplines is enabled by the progress of technology. However, there is a problem of communication: Different knowledge fields traditionally have different languages. 32 RESEARCH, COMMUNICATION AND ICT Sciences cover well defined domains (physics, mathematics, biology, sociology, economy…) where knowledge is produced by specific scientific communities through intense communication within a group and with not much communication with the rest of the world. However, access to knowledge have become easy and communication between sciences, arts and humanities more and more common. 33 Cybernetics as a Language for Interdisciplinary Communication Stuart A. Umpleby The George Washington University Washington, DC www.gwu.edu/~umpleby 34 HOW IS INTERDISCIPLINARY COMMUNICATION POSSIBLE? [Cybernetics is the interdisciplinary study of the structure of regulatory systems. Cybernetics is closely related to control theory and systems theory. Both in its origins and in its evolution in the second-half of the 20th century, cybernetics is equally applicable to physical and social (that is, language-based) systems. (Wikipedia)] • We need to share a common language • Perhaps there is a common “deep structure” which is hidden by our more specialized discipline-oriented terms and theories After Stuart A. Umpleby 35 COMMON PROCESSES IN THE EXTERNAL WORLD James G. Miller’s suggests that living systems exist at seven levels: - cell, - organ, - organism, - group, - organization, - nation, - supranational organization After Stuart A. Umpleby 36 BASIC CONCEPTS In cybernetics there are three fundamental concepts: Regulation Self-organization Reflexivity After Stuart A. Umpleby 37 REGULATION Regulation is based on two elements – regulator and system being regulated Engineering examples – thermostat and heater, automatic pilot and airplane Biological examples – feeling of hunger and food in stomach, light in eye and iris opening Social system examples – manager and organization, therapist and patient After Stuart A. Umpleby 38 THE LAW OF REQUISITE VARIETY Information and selection “The amount of selection that can be performed is limited by the amount of information available” Regulator and regulated “The variety in a regulator must be equal to or greater than the variety in the system being regulated” W. Ross Ashby After Stuart A. Umpleby 39 COPING WITH COMPLEXITY When faced with a complex situation, there are two choices 1. Increase the variety in the regulator: hire staff or subcontract 2. Reduce the variety in the system being regulated: reduce the variety one chooses to control After Stuart A. Umpleby 40 THE MANAGEMENT OF COMPLEXITY • There has been a lot of discussion of complexity, as if it exists in the world • Cyberneticians prefer to speak about “the management of complexity” • Their view is that complexity is observer dependent, that the system to be regulated is defined by the observer After Stuart A. Umpleby 41 SELF-ORGANIZATION • Every isolated, determinate, dynamic system obeying unchanging laws will develop organisms adapted to their environments. W. Ross Ashby • Many elements within the system • Boundary conditions – open to energy (hence dynamic) – structures closed to information (interaction rules do not change during the period of observation) http://www-lih.univlehavre.fr/~bertelle/cossombook/cossombook.html Complex Systems and Self-organization Modelling After Stuart A. Umpleby 42 Examples of self-organization Physical example – chemical reactions; iron ore, coke, and oxygen heated in a blast furnace will change into steel, carbon dioxide, water vapor and slag Biological examples – food in the stomach is transformed into usable energy and materials, species compete to yield animals adapted to their environments, insect swarms After Stuart A. Umpleby 43 SELF-ORGANIZATION IN ARTIFACTS http://groups.csail.mit.edu/mac/projects/amorphous/Robust Biologicallyinspired Models of Cell Differentiation and Morphogenesis http://www.youtube.com/watch?v=SkvpEfAPXn4 Robots with minds of their own http://www.calresco.org/links.htm Self-organization resources 44 DIGITAL VIDEO FEEDBACK AND MORPHOGENESIS Video Feedback systems tend toward either stability or chaos. The unstable attractor offers an unlimited supply of endless evolving motifs and an emergent behaviour. The system can be get into chaotic emergence via camera movement (rotation and positioning). The important thing is to catch the movement of ‘catching a shape’ in a particular temporal phase to feed back into the system advancing the complexity and initiating lifelike morphogenesis. http://www.transphormetic.com/Talysis01.htm 45 COMPLEX SYSTEMS http://www.youtube.com/watch?v=QmrWfRX42ZM&feature=related Self-organizing adaptive systems http://www.youtube.com/watch?v=ueJ0E-H7hkk&feature=related Regime shifts Four Important Characteristics of Complexity: • Self-Organization • Non-Linearity • Order/Chaos Dynamic • Emergent Properties http://www.calresco.org/links.htm 46 COMPLEX SYSTEMS Computer Programming approaches used for demonstrating, simulating, and analyzing Complex Systems: • Artificial Life • Genetic Algorithms • Neural Networks • Cellular Automata • Boolean Networks http://www.calresco.org/links.htm 47 SELF-REFERENCE http://www.lsd.ic.unicamp.br/~oliva/guarana/docs/design-html/node2.html Computational Reflection 48 DOUGLAS HOFSTADTER ON SELF-REFERENCE “ Self-reference is ubiquitous. It happens every time any one says “I” or “me” or “word” or “speak” or “mouth”. It happens every time a newspaper prints a story about reporters, every time someone writes a book about writing, designs a book about book design, makes a movie about movies, or writes an article about selfreference. Many systems have the capability to represent or refer to themselves somehow, to designate themselves (or elements of themselves) within the system of their own symbolism. Whenever this happens, it is an instance of self-reference.” “My proposal [...] is to see the “I” as a hallucination perceived by a hallucination, which sounds pretty strange, or perhaps even stranger: the “I” as a hallucination hallucinated by a hallucination.” (I Am a Strange Loop, p. 293 ) 49 SELF-REFERENCE (REFLEXIVITY) This model has traditionally been avoided and is logically difficult. Inherent in social systems where observers are also participants, in individual living organisms. Every statement reveals an observer as much as what is observed. After Stuart A. Umpleby 50 EXAMPLES OF SELF-REFERENCE: RECURSIVE ALGORITHMS This graph is based on a simple recursive algorithm. Recursion is a popular technique used to describe trees and the like, because of the self-referential nature of a tree. Self-reference can lead to undecidability (and paradoxes like set of all sets that are not members of themselves) 51 Self-reference (Reflexivity) Observation Self-awareness After Stuart A. Umpleby 52 Reflexivity in a social system Stuart A. Umpleby 53 Engineering Cybernetics Biological Cybernetics Social Cybernetics The view of epistemology A realist view of epistemology: knowledge is a “picture” of reality A biological view of epistemology: how the brain functions A pragmatic view of epistemology: knowledge is constructed to achieve human purposes A key distinction Reality vs. scientific theories Realism vs. Constructivism The biology of cognition vs. the observer as a social participant The puzzle to be solved Construct theories which explain observed phenomena Include the observer within the domain of science Explain the relationship between the natural and the social sciences What must be explained How the world works How an individual constructs a “reality” How people create, maintain, and change social systems through language and ideas A key assumption Natural processes can be explained by scientific theories Ideas about knowledge should be rooted in neurophysiology. Ideas are accepted if they serve the observer’s purposes as a social participant An important consequence Scientific knowledge can be used to modify natural processes to benefit people If people accept constructivism, they will be more tolerant By transforming conceptual systems (through persuasion, not coercion), we can change society Three Versions of Cybernetics 54 After Stuart A. Umpleby CYBERNETICS VIEW OF SCIENTIFIC PROGRESS: THE CORRESPONDENCE PRINCIPLE Proposed by Niels Bohr when developing the quantum theory. Any new theory should reduce to the old theory to which it corresponds for those cases in which the old theory is known to hold A new dimension is required After Stuart A. Umpleby 55 NEW PHILOSOPHY OF SCIENCE Old philosophy of science Amount of attention paid to the observer An Application of the Correspondence Principle After Stuart A. Umpleby 56 NEW PARADIGM OF COMPUTING: Organic computing Organic computing is a form of biologically-inspired computing with organic properties. It has emerged recently as a challenging vision for future information processing systems. Organic Computing is based on the insight that we will soon be surrounded by large collections of autonomous systems, which are equipped with sensors and actuators, aware of their environment, communicate freely, and organise themselves in order to perform the actions and services that seem to be required. http://en.wikipedia.org/wiki/Organic_computing 57 ORGANIC COMPUTING The presence of networks of intelligent systems in our environment opens fascinating application areas but, at the same time, bears the problem of their controllability. Hence, we have to construct such systems — which we increasingly depend on — as robust, safe, flexible, and trustworthy as possible. In particular, a strong orientation towards human needs as opposed to a pure implementation of the technologically possible seems absolutely central. In order to achieve these goals, our technical systems will have to act more independently, flexibly, and autonomously, i.e. they will have to exhibit life-like properties. We call those systems "organic". 58 ORGANIC COMPUTING • An "Organic Computing System" is a technical system, which adapts dynamically to the current conditions of its environment. It is characterised by the self-X properties: • self-organization, • self-configuration (auto-configuration), • self-optimisation (automated optimization), • self-healing, • self-protection (automated computer security), • self-explaining, • and context-awareness. 59 ORGANIC COMPUTING • In order to be able to build huge intelligent organic-computing systems we have to learn from variety of fields – from physics, chemistry, genetics, biology to sociology and linguistics. • In other words we have to learn to manage complexity of knowledge production from different research fields. 60 CONCLUSIONS: TRANSDISCIPLINARY, INTERDISCIPLINARY AND CROSS DISCIPLINARY RESEARCH Modern sciences are stretching through several classical fields. Computer science e.g. includes the field of AI that has its roots in mathematical logic and mathematics but uses physics, chemistry and biology and even parts where medicine and psychology are important. Examples: Environmental studies, Cognitive sciences, Cultural studies, Policy sciences, Information sciences, Women’s studies, Molecular biology, Philosophy of Computing and Information, Bioinformatics, .. 61 CONCLUSIONS: TRANSDISCIPLINARY, INTERDISCIPLINARY AND CROSS DISCIPLINARY RESEARCH Research into complex phenomena has led to an insight that research problems have many different facets which may be approached differently at different levels of abstraction and that every knowledge field has a specific domain of validity. This new understanding of a multidimensional many-layered knowledge space have among others resulted in an ecumenical conclusion of science wars by recognition of the necessity of an inclusive and complex knowledge architecture which recognizes importance of a variety of approaches and types of knowledge. 62 REPRESENTATIVE WORK: TRANSDISCIPLINARY, INTERDISCIPLINARY AND CROSS DISCIPLINARY RESEARCH Based on sources in philosophy, sociology, complexity theory, systems theory, cognitive science, evolutionary biology and fuzzy logic, Smith and Jenks present a new interdisciplinary perspective on the self-organizing complex structures. They analyze the relationship between the process of self-organization and its environment/ecology. Two central factors are the role of information in the formation of complex structure and the development of topologies of possible outcome spaces. 63 REPRESENTATIVE WORK: TRANSDISCIPLINARY, INTERDISCIPLINARY AND CROSS DISCIPLINARY RESEARCH The authors argue for a continuous development from emergent complex orders in physical systems to cognitive capacity of living organisms to complex structures of human thought and to cultures. This is a new understanding of unity of interdisciplinary knowledge, unity in structured diversity, also found in Mainzer. 64 REPRESENTATIVE WORK “Cosmic evolution leads from symmetry to complexity by symmetry breaking and phase transitions. The emergence of new order and structure in nature and society is explained by physical, chemical, biological, social and economic selforganization, according to the laws of nonlinear dynamics. All these dynamical systems are considered computational systems processing information and entropy.” 65 REPRESENTATIVE WORK “Are symmetry and complexity only useful models of science or are they universals of reality? Symmetry and Complexity discusses the fascinating insights gained from natural, social and computer sciences, philosophy and the arts. With many diagrams and pictures, this book illustrates the spirit and beauty of nonlinear science. In the complex world of globalization, it strongly argues for unity in diversity.” 66 REPRESENTATIVE WORK ix Preface Part I The Simple and the Complex 1 Prologue: An Encounter in the Jungle 2 Early Light 11 3 Information and Crude Complexity 23 4 Randomness 43 5 A Child Learning a Language 51 6 Bacteria Developing Drug Resistance 63 7 The Scientific Enterprise 75 8 The Power of Theory 89 9 What Is Fundamental? 10 7 3 67 Part II 10 11 The Quantum Universe Simplicity and Randomness in the Quantum Universe A Contemporary View of Quantum Mechanics: 135 Quantum Mechanics and the Classical Approximation Quantum Mechanics and Flapdoodle 167 13 Quarks and All That: The Standard Model 177 14 Superstring Theory: Unification at Last? 199 Time's Arrows: Forward and Backward Time Selection and Fitness 16 Selection at Work in Biological Evolution and Elsewhere 235 17 From Learning to Creative Thinking 261 18 Superstition and Skepticism 275 19 Adaptive and Maladaptive Schemata 291 20 Machines That Learn or Simulate Learning 307 123 12 15 Part III 215 Part IV Diversity and Sustainability 21 Diversities Under Threat 329 22 Transitions to a More Sustainable World 345 23 Afterword 367 68 REPRESENTATIVE WORK Philosophy of Information (Handbook of the Philosophy of Science) (Hardcover) by Pieter Adriaans & Johan F.A.K. van Benthem (Editors), 2008 DM. Gabbay, P Thagard & J Woods (Series Editors) 69 Philosophy of Science/Theory of Science Assignments – Assignment 2: Demarcation of Science vs. Pseudoscience (in groups of two) – Discussion of Assignment 2 - compulsory – Assignment 2-extra (For those who miss the discussion of the Assignment 2) – Assignment 3: GOLEM: Three Cases of Theory Confirmation (in groups of two) – Discussion of Assignment 3 - compulsory – Assignment 3-extra (For those who miss the discussion of the Assignment 3) 70 AND AN EXAMPLE OF THE ROLE OF PERSPECTIVE AT THE END! 71